Bent sliding trolley



Oct. 1, 1929.

J. BOZOWICH 1,729,924

BENT SLIDING TROLLEY Filed July 15, 192'? Patented Oct. 1, 1929 I JOHN Bozowion, or sen rmoisoo; catiromrm BENT SLIDING TROLLEY r Application filed July 13, 1927. .Scrial No. 205,451.

Theprimary object of my invention is the provision of a street car trolley which is durable, reliable in operation, simple in construction and that may be easily and quickly 5 changed when desired.

Another object of the invention is to provide a trolley of the class designated which greatly minimizes the wear and tear on trolley crossings and which requires less expenm sive and cumbersome gear at these crossings. Another object of the invention is that a trolley constructed in accordance with my invention may be used on small or large street cars and will not leave the trolley wire due 1}, to its width.

Other objects and advantages of the in- I vention will be a parent with reference to the subjoined speci cat-ion and the accompanyingz one sheet of drawings in which 2o igurel is a plan view of the trolley as it would appear lyingflat upon the car top;

Figure 2 is a perspective view of a street car showing my improved trolley in place thereon; and

Figure 3 is a plan detail view on a large scale showing the trolley and its actuating means in detail.

Referring more particularly to the drawings'in which the preferred form of the in-- :3 vention has been illustrated, the numeral 1 indicates the top of the street car on which is mounted a trolley 3 adapted for en agement with the trolley wire 2, said car eing adapted to run upon the usual track 8 which acts as a return conductor for the propulsion current.

The trolley 3 is formed from a single piece of heavy wire having a loop 5 at the up r end thereof, the upper part 7 thereof bemg ada ted to be held in engagement with the trol ey wire 2 by means of a spring 4. The usual trolley cord 6 is connected to the trol- .ley 3 through a non-conductor 15. p

The free end of the wireforming the loop 5 of the trolley is bent into a hook-shaped member 13 about the center of the trolley, the other end being bent around a trunnion 9 carried by the plate 11 which is secured to the top 1 of the car and the end of the trolley "is retained on the trunnion by means of a wear the trolley section instead-of the trolley v pole with relation to the top of the car.

cotter pin 10, said trunnion 9 acting asa'pivot" for the'trolley 3 with'the spring ,4 acting between the trolle 3 and a stat onary'lug 12 to which the en of t e spring is'attachedtl I The wire contacting sectionof the trolley should be thicker than the restto insure dur- .j

ability and this portion should be reinforced by welding another section of wireftosaid; contacting section thereof. The said rein forcing section being constructed .irom' pure copper or other suitable metal softer than the wire 2 in order that the wear-and-tear caused by the trolley contacting thawire will wire 2. H a 1 J The wire contacting section of the trolley,

should be approximately the sameyw dth-as the top of the car ,upon which it-is mounted so that it will never leave the wire, when rounding sharp curves. 10

The spring 4, of course, should be made in accordance with the weight of the trolley,

but 'must not be strong enough to bend it.

The wire contacting section of the trolley is triangular in sha as shown infFigu're 1, and, of course two 0 the trolleys are mounted on the car top as showh, the mountin s being arranged in oppos ite corners, as-clear y shown in Figures 1 and 2.

Having thus described my invention, I claim:

1, In combination with the top of a trolley car and a trolley wire, a trolley pole comprising a length of wire secured at one end to the car top and having formed at its opposite end a substantially triangular frame overlying substantially. the width of the car top and adapted to contact the trolley wire, and means for lowering and raising said so 2. A trolley pole comprising a single length of 'wire, terminatin' at one end in a trianular frame and a apted to overlie the tro ey car top, a plate for securing one endof the wire to the car top, tension means connected to said pfate. and connected-to the trolley ole and means for raising and lowering said pole withrelation to the top of said car.

JOHN BOZ' OWICH. 100 

